Check.list

DOMAIN-SUFFIX,cloudflare.com
DOMAIN-SUFFIX,fast.com
DOMAIN-SUFFIX,speedcheck.org
DOMAIN-SUFFIX,speedtest.net
DOMAIN-SUFFIX,speedtest.cn
DOMAIN-SUFFIX,ustc.edu.cn
DOMAIN-SUFFIX,dnscheck.tools
DOMAIN-SUFFIX,whoer.net
DOMAIN-SUFFIX,browserleaks.com
DOMAIN-SUFFIX,browserleaks.org
DOMAIN-SUFFIX,browserleaks.net

DOMAIN-SUFFIX,dnsleaktest.com
DOMAIN-SUFFIX,browserscan.net
DOMAIN-SUFFIX,surfshark.com
DOMAIN-SUFFIX,surfsharkdns.com
DOMAIN-SUFFIX,ip-api.com

DOMAIN-SUFFIX,ipleak.net
DOMAIN-SUFFIX,ip-score.com
DOMAIN-SUFFIX,888005.xyz
DOMAIN-SUFFIX,incolumitas.com

DOMAIN-SUFFIX,null-addr.com
DOMAIN-SUFFIX,null-addr.net
DOMAIN-SUFFIX,null-addr.org
DOMAIN-SUFFIX,null-addr.biz
DOMAIN-SUFFIX,null-addr.info
DOMAIN-SUFFIX,addr.tools

DOMAIN-SUFFIX,ifconfig.me
DOMAIN-SUFFIX,ip125.com
DOMAIN-SUFFIX,skk.moe
DOMAIN-SUFFIX,ip111.cn
DOMAIN-SUFFIX,vultr.com
DOMAIN-SUFFIX,ping0.cc
DOMAIN-SUFFIX,incolumitas.com
DOMAIN-SUFFIX,incolumitas.com
DOMAIN-SUFFIX,incolumitas.com